Pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 12589 result(s) returned

Finding the foci an ellipse
An interactive applet and associated web page that provide step-by-step instructions on how to find the foci of a given ellipse using a compass. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Author(s): John Page

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Constructing circumcenter of a triangle with compass and straightedge
An interactive applet and associated web page that provide step-by-step animated instructions on how to construct the circumcenter of a triangle. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Author(s): John Page

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Constructing a 90 degree angle with compass and straightedge
An interactive applet and associated web page that show how to construct a 90 degrees right angle with a compass and straightedge. The animation can be single-stepped or run as a continuous movie. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Author(s): John Page

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SSA doesn't work
An interactive applet and associated web page that shows that side-side-angle is not enough to prove congruence, because two triangles can meet the condition. The applet shows two triangles, one of which can flip between the two possible configurations that both meet the SSA criteria, showing it is insufficient. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the M
Author(s): John Page

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Congruent Polygons
An interactive applet and associated web page that demonstrate the congruence of polygons. The applet presents nine polygons that are in fact congruent, but don't look it because they are reflected and rotated in various ways. If you click on one, it rotates and flips as needed, then slides over the top of another to show it is congruent. The web page describes how to determine if two polygons are congruent. Applet can be enlarged to full screen size for use with a classroom projector. This reso
Author(s): John Page

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AAA Doesn't work
An interactive applet and associated web page that shows that angle-angle-angle (AAA) is not enough to prove congruence. The applet shows two triangles, one of which can be dragged to resize it, showing that although they have the same angles they are not the same size and thus not congruent. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference I
Author(s): John Page

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Radius of an Arc or Segment
An interactive applet and associated web page that describe the radius of an arc and how to derive it from the width and height of the segment defined by that arc. A practical use is described for finding the radius of a circular arch given its other dimensions. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Author(s): John Page

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Perimeter of a triangle
A web page and interactive applet show how to compute the perimeter of a triangle. A triangle is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously recalculated. Text on the page explains that the perimeter is the sum of the sides. For those who prefer it, in a formula that is given. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference interactive geometry reference book
Author(s): John Page

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Readings in the History of Aesthetics
Anyone with connection to the Internet has access to a vast number of philosophical documents via online etexts. Fortunately, quite a bit of the best work in philosophy is in the public domain, and a few of these readings provide a convenient access for almost anyone seeking information and help in the history of aesthetics. However, many of the historically significant writings in aesthetics are not presently available on the Internet, and this open source text helps somewhat to remedy that nee
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Readings in Eastern Philosophy
Many classic works in Eastern philosophy are accessible via online sources on the Internet. Fortunately, many of the influential and abiding works are in the public domain; these readings provide a convenient way to produce quality learning experiences for almost anyone seeking information and help. Our present collection of edited readings is free but subject to the legal notice following the title page. By placing these selections in the public domain under the GFDL, the editors are, in effect
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Hermann Hesse's Siddhartha
Almost all major works in philosophy and literature are accessible via online sources on the Internet. Fortunately, much of the best work in philosophy and literature is available in the public domain. A translation of Herman Hesse's Siddhartha, in particular, became available through Project Gutenberg by Michael Pullen. This edited version of that text is subject to the legal notice following the title page referencing the GFDL License. By placing this edited reading selection under the GFDL, t
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Word-Form Recognition Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Word-Form Recognition Activities, a page of sequential and supplemental activities that helps teachers teach students to recognize and decode common words on sight.
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Sounding Out Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Sounding Out Activities, a page of sequential and supplemental activities that helps teachers teach students to take a printed regular word and decode it by producing letter sounds and blending them.
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Reading Connect Text Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Reading Connect Text Activities, a page of sequential and supplemental activities that helps teachers teach students to decode their first sentences in print.
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Phonological Awareness Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Phonological Awareness Activities, a page of sequential and supplemental activities that helps teachers teach students the ability to identify and manipulate parts of spoken language.
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Listening Vocabulary Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Listening Vocabulary Activities, a page of supplemental activities that helps teachers teach students vocabulary words from various grade appropriate books.
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Letter Writing Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Letter Writing Activities, a page of sequential and supplemental activities that helps teachers teach students how to handwrite each letter of the alphabet properly.
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Letter Sound Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Letter Sound Activities, a page of sequential and supplemental activities that helps teachers teach students how to recognize printed letters and say the most common sound for each letter.
Author(s): No creator set

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Letter Combination Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Letter Combination Activities, a page of sequential and supplemental activities that helps teachers teach students to recognize printed letter combinations and say the most common sounds for those combinations and to decode VCe words.
Author(s): No creator set

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Irregular Word Activities
FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Irregular Word Activities, a page of sequential and supplemental activities that helps teachers teach students to read 30 high-frequency irregular words.
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